Does anyone remember how in SC1, all of the units selected would use the ability? It made Dark Archon Mind Control really annoying -.-
Anyway, they changed it back in SC2, but i have a map where it would make things alot easier if you could just apply the ability to all of the selected units at once. The ability is merge and it costs minerals, if that makes a difference.
It's a flag on abilities called "best unit."
By the way, SC2 has abilities like that. Stimpack, burrow, blink, and cloaking all apply to each unit selected.